Explore topic-wise MCQs in Antenna Array.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Antenna Array knowledge and support exam preparation. Choose a topic below to get started.

1.

The isotropic element array radiation pattern depends on the nulls of the array factor only.

A. True
B. False
Answer» B. False
Discussion
2.

The total radiation pattern of a two element array, elements separated by a distance λ/4 and phase difference \(\frac{π}{2},\) the nulls occur at (for far field) ____________

A. 0, ±π/2
B. π, ±π/2
C. π, ±π/4
D. ____________a) 0, ±π/2b) π, ±π/2c) π, ±π/4d) π/4, ±π/2
Answer» B. π, ±π/2
Discussion
3.

Which of the following doesn’t applicable for pattern multiplication?

A. It is the product of the individual radiation pattern of the element with the array factor of the array
B. All elements must be identical
C. All elements need not be identical
D. This gives the radiation pattern of the entire array
Answer» D. This gives the radiation pattern of the entire array
Discussion
4.

All the elements must be identical to apply pattern multiplication principle.

A. True
B. False
Answer» B. False
Discussion
5.

Which of the following expression represents the pattern multiplication?

A. Etotal=Eθ × Array Factor
B. Etotal=Eθ × Directivity
C. Etotal=Eall elements × Array Factor
D. Etotal=Eθ × Beamwidth
Answer» B. Etotal=Eθ × Directivity
Discussion
6.

Pattern multiplication is the multiplication of single array radiation pattern with ___

A. Array Factor
B. Beamwidth
C. Total Field
D. Directivity
Answer» B. Beamwidth
Discussion